Wheel.



J. A. BGB-LAND.

WHEEL.

APPILIOATION FILED DBG. 14, 1912.

SHEETS-SHEET l.

a QN .33. A. ORLAND.'

WHEEL.

APPLICATION FILED DB0.14,1912.

; magma Jam.' 26, wm

APPLICATIN FILED DEGM. 1912.

J". AA BBJAD.

WHEEL.

@Patented Jan. 26, T1915.

6 SHEETS-SHEET 3.

L A.. BQRLAND.'

WHEEL. APPIJGATIOH FILED DEU'. M, 1912.

Pmenwd @11.26, i915.

E HHEBTS-SHBET 4.

Q J. gwyww air in the bore 4 is a cylindrical spindlehead 10 having enlarged ends 11 and 12 provided with annular grooves 13 and 14 in which seat the expansion packingl rings 15 and 1G, said heads fitting against the walls of the cylindrical bore 4 so snugly that escape of air from the pockets 17 or 18 at the opposing ends of the bore is prevented. A. pas-l sage 19 is provided through the central portion of the spindle 10 to-permit of the seating of the axle 9 thereon. A bushing (not shown) may be provided in said passage 19 for'the axle if desired; A spindle sleeve 20 incases the axle 9 and the neck portion 2l the 'slots 26 and 27 whereby air is held' against escape from the pockets 32 and 33.. lt'will readily be seen that a reciprocating movement of the cups 28 and l29 caused by the joltingof a vehicle upon which saidy wheels are used will cause air to be trapped into the pockets 32 and 33, the air being taken in when the lower edges of the cups are above the walls 30 and 31 whereby said pistons assist in suspending said head which 'will at all times be held resiliently suspended regardless of the weight upon the axle,

the pistons acting to produce a proper amount of-air pressure which together with thev air'compressed under the spindle head will hold it suspended on an approximately uniform plane under any conditions or emergencies. The head 10 is provided withv a small air passage 36,(shown in dotted lines in Fig. 4) whereby air' may be sucked into the pocket 18 from the openings 26 and 27 whenever the inlets 37 and 38 of said air passage project above the walls 30 and 31,

so that a sudden movement ofthe wheel relativeto the head 10 willpermit of an adequate amount or' air being supplied under the head on its downward movement tov break any shock whatsoever.

Above `the upper walls 39 and 40 of-the slots 5 and 6 is provided the pockets 17 and when the end of the head 10 projects above said last named walls air is compressed in said 'pocket which acts as a cushion to prevent said end from hammering Aagainst the upper wall 41 'of said bore 4 `thereby preventing any shock from such a relative movement of the wheel' and spindle.

The coil springs 42 and 43 seated under the pistons 28 and 22 are for the purposeorl holding the spindle 10 suspended when the -vehicle upon whichvthe wheels are used are at a standstill and with only@ nominal weight therein and before movement of the vehicle has caused a supplyoil air to be pumped under the spindle. These springs the walls of the bores 4, 5 and .6 as without l their use would be necessary.. j

It has above been explained that thelaxl'e 9 is rotatable and itis rotated as shown in the drawings in this-case (see Fig. 1) by means of a bevel gearing 44 operated by an engine shaft- 45, the saidgearing being covered by the hood 46. The outer end of the axle 9 is provided with a disk 47Y having a slot 48 across its face 49 in which is slidable a tongue 50 of a disk 51 which has'provided in its face 5 2 opposing the face lwith the tongue 50, a groove53 running transverse of said tongue 51, irrwhich is slidable a tongue 54 on. the disk 55 which separates trans-A versely of the tongue 50. The disk 55 has provided on its outer surface 56 a proJecting rectangular'head 57 which 'fitsinto the recso .l

tangular socket 58 in the face plate 59 which in turnis fixed to the revolving hub 1. The members47, 5l and 55 with their slidable tongue and groove connections form Va universally movable connection between the*l axle andle'wheel whereby the latter may be rotated by the aule regardless of theirrelative positions, the axle at all' times being rigidlyhxed to the rotatable hub 1. The pistons 28 and 29 are formed'cup-shaped in order that a greater amount of air may be pocketed under the arms 24 and 25.-'

The spindle 10 is provided on' its opposing ends with centering members 72 andA 73 forthe purpose of holding said spindle absolutely vertical in the bore 4 at all`times. Each of thesel centering members consists of' a pair-offsemicylindricalfplates 74 and 75 having their inner edges 76 and 77 beveled to receive the wed ge 78, the members 74 andf 7 5 are each provided with longitudinalslots 79 and 80 through which project screws 81 iis and 82,` whereby they are'held to the member 10 andthe wedge 78 is seated betweenthe members 74 and 7 5 -and iixed'to the member' 10 by means of a screw 83.- Whenever the enlarged ends 11` and 12 oi the member 10 wear sufficiently to lpermit of 4an undue amount of leakage or permit of any sidewise motion of the member 10, all that is necessary to do is to slightlyloosen -up the screws 81 and 82 and tighten the screw 83 whereby the wedge is driven down between aan pended spindle head in said box, and an axle mounted in said head, said bores beine connected by openings in the walls thereo and arms projecting from said head into each of the outer of said bores, pistons carred by said arms, said pistons adapted to compress air in said bores, and means whereby said pistons are resiliently suspended.

11. The described wheel having a rotatable hub, a cylindrically formed box around which saidhub rotates, a plurality of bores in said box, a pneumatically suspended spin` die head in said box, and an axle mounted in said head, said bores being connected by openings in the walls thereof,and arms proj eating from said head into each of the outer of said bores, pistons carries by said arms, said pistons adapted to compress an' 1n said bores, and means whereby said pistons are resiliently suspended, said pistons consisting of inverted cups, 'springs projecting into .said cups.

l2. The described wheel having a rotatable hub, a cylindrical-ly formed box around which said hub rotates, a plurality of bores maarre tons are resiliently suspended, said pistons .consisting of inverted cups, springs projecting into said cups', said pistons adapted t0. suck air through said openings and compress it below said openings whereby they are held suspended.

13. The described wheel having a rotatable hub, a c'ylindrioally formed box around ywhichfsaid hub rotates, a plurality of bores in said box, a. pneumatically suspended spindle head in said box, andan axle mounted in said head, said bores being connected by openings in the walls thereof, and arms projecting Jfrom said head into each of the outer of said bores, pistons carried 'by said arms, said pistons adapted to compress air. in said lbores, and means whereby said pistons are resiliently suspended, said pistons consisting of inverted cups, springs projecting into 'said cups, said pistons adapted to suck air through said openings andcompress it below. said openingsv whereby they are held* suspended, said bores being conopenings, said latter openings being near `the bottoms of said bores.

In testimony whereof I affix my signature Witnesses:

ANNA BORLAND, Gnoncn CWScHnarr'r, J r.

'nected by openings smaller than said first 

